1. [INC 281 MULTIDISCIPLINARY WORKSHOP WEEKLY REPORT] March 1, 2012
Name-Surname Pannipa Kongketyai
Student ID. 53211822
Group Name IS company
EngineeringTeam
Knot, Jane, Mut, Su
Members
Product Design Team
P.Satang, P.Fon, P.Tip, P.aeng, P.Ped, P.Mild
Members
Weekly Progress
This week I searched the data about ‘Temperature Controller’ which was controlled by Triac and Diac.
The triac is similar in operation to two thyristors connected in reverse parallel but using a common gate connection. This gives the triac the
ability to be triggered into conduction while having a voltage of either polarity across it. In fact it acts rather like a "full wave" thyristor. Either positive
or negative gate pulses may be used.
Triacs are mainly used in power control to give full wave control. This enables the voltage to be controlled between zero and full power.
With simple "half wave" thyristor circuits the controlled voltage may only be varied between zero and half power as the thyristor only conducts during
one half cycle. The triac provides a wider range of control in AC circuits without the need for additional components, e.g. bridge rectifiers or a second
thyristor, needed to achieve full wave control with thyristors. The triggering of the triac is also simpler than that required by thyristors in AC circuits,
and can normally be achieved using a simple DIAC circuit.
Basic Circuit of Water Heater Triac Symbol
Engineering Analysis
Strong Point
- Triac and Diac can control the power for electric machine.
- If we add Capacitor, it can delay the wave form. This one can control the power we want.
Weak Point
- It can use with Alternating Current only.
Next Week Job
I will search the data about function that ID want.
Department of Control System and Instrumentation Engineering
KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI
![[INC 281 MULTIDISCIPLINARY WORKSHOP WEEKLY REPORT] March 1, 2012
Name-Surname Pannipa Kongketyai
Student ID. 53211822
Group Name IS company
EngineeringTeam
Knot, Jane, Mut, Su
Members
Product Design Team
P.Satang, P.Fon, P.Tip, P.aeng, P.Ped, P.Mild
Members
Weekly Progress
This week I searched the data about ‘Temperature Controller’ which was controlled by Triac and Diac.
The triac is similar in operation to two thyristors connected in reverse parallel but using a common gate connection. This gives the triac the
ability to be triggered into conduction while having a voltage of either polarity across it. In fact it acts rather like a "full wave" thyristor. Either positive
or negative gate pulses may be used.
Triacs are mainly used in power control to give full wave control. This enables the voltage to be controlled between zero and full power.
With simple "half wave" thyristor circuits the controlled voltage may only be varied between zero and half power as the thyristor only conducts during
one half cycle. The triac provides a wider range of control in AC circuits without the need for additional components, e.g. bridge rectifiers or a second
thyristor, needed to achieve full wave control with thyristors. The triggering of the triac is also simpler than that required by thyristors in AC circuits,
and can normally be achieved using a simple DIAC circuit.
Basic Circuit of Water Heater Triac Symbol
Engineering Analysis
Strong Point
- Triac and Diac can control the power for electric machine.
- If we add Capacitor, it can delay the wave form. This one can control the power we want.
Weak Point
- It can use with Alternating Current only.
Next Week Job
I will search the data about function that ID want.
Department of Control System and Instrumentation Engineering
KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI](https://image.slidesharecdn.com/best-120307030326-phpapp02/85/Besta-1-320.jpg)
